What is Paretic Propulsion, and Why Does it Matter?
Watch this highlighted clip to hear from Kathleen O’Donnell as she takes us through an exercise to help us understand the relationships between ankle plantarflexion, trailing limb angle, and forward propulsion in the gait cycle, and highlights why it is so important to retrain for effective propulsion symmetry in patients post-stroke.
These principles are the foundation of the ReStore Exo-Suit, which helps to train effective plantarflexion function and timing for patients undergoing clinic-based gait rehabilitation after a stroke.
You can learn more about the ReStore Exo-Suit on the ReStore product page.
This is a highlighted clip from ReWalk’s Topics in NeuroRehabilitation web series. You can watch the full episode here.
So we also looked into, OK,
if we know that propulsion is important
and we know it’s something that we’re
we’re sort of challenged to address
in the clinic,
how can we think about propulsion?
How can that really be generated?
And we saw from Mike Lewek in Episode 08,
he did a really nice job of breaking down
the two subcomponents of propulsion.
So he specifically talked about the ankle
plantarflexion, or the forces generated
at the ankle to really push down
into the ground and push the ankle
down and drive the body forward.
And then he also talked about the
importance of the trailing limb angle.
So this is the angle that your leg is
basically behind your
body’s center of mass.
So, how far behind you is that leg when
you’re doing that ankle plantarflexion?
So we put together a quick video just
to sort of help everybody understand
this a little bit deeper.
So what I’m going to have all of our
viewers do is if you can stand up where
you are, and what I want you to do
is just put your hands on your hips.
And the first thing we’re going to do
is explore that ankle plantarflexion.
So if you raise up onto your toes and so
you’re plantarflexing your ankles,
what I want you to do is feel
the direction that your hips are moving.
And you’re going to notice that your hips
are just moving straight up
because plantarflexion when your foot is
underneath you is going to move the weight
of the body up, but not move
the weight of the body forward.
So now we’re going to try this again,
and I’m going to have you take a step
forward with your left foot,
and now I want you to raise up
on the toes of your right foot.
And now you’re going to feel that when you
have your hands on your hips,
your hips are actually translating
forward as you raise up on your toes.
So you can see that it’s not just
the ankle plantarflexors that matter,
but it’s also the angle that they are
and the angle that your leg
is with respect to your body.
And we also heard from Lou Awad in that
same talk about why this really matters.
Why we care about propulsion asymmetry is
that it really translates and correlates
with all of these other metrics that we
look at to really see how that affects
that patient’s community
ambulation and quality of life.
And that’s really what the goal of gait
training is, is to get somebody back
to their highest level of function
in their highest quality
of life that they can achieve.
This has been a highlighted clip
from ReWalk’s Topics
in NeuroRehabilitation web series.
To watch the full episode,
please go to the ReWalk Robotics YouTube
page, or visit the link
in the comments below.
See you next time!